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Answered 2012-01-23 22:45:48

The inner planets are smaller than the outer planets. This may be because the outer planets are called gas giants. This means that gas can accumulate in size at times, and this can be one of the situations.

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The size of inner and outer planets?

the outer planets are bigger than the inner planets


How can you compare the inner planets and the outer planets?

You could compare them by: * size * mass * volume * ability to support life * atmospheric features * diameter * surface features * temperature * etc.


Which planets are closest together-the inner or the outer planets?

The inner plants. The size and distance of the outer planets means they have longer and more spaced out orbits


What do all inner planets have in common?

They are small and have rocky surfaces.its there size and so is for outer planets


How are the inner planets similar to the outer planets?

Inner and outer planets have some things that are in common but there mostly way different. For instants they both orbit the sun. On the other hand the outer planets are made mostly by gas, that's why they are called the gas giants. The inner planets are mostly made by rock and dust. The inner planets are called Terrestrial planets and the outer planets are called Jovian planets. The inner planets are closer to the sun, have more density, they have less moons, there about the size of Earth, and they rotate slowly. The outer planets (Jovian Planets) are farther from the sun, they have less density, they have more moons, they are large, about the size of Jupiter, they rotate rapidly, and they have more mass. These planets are alike because they both orbit the sun.


What did you notice about the size of the inner planets compered with the size of the outer planets?

During my extensive travels, I noticed that all of the planets from Jupiter on out are bigger than any of the planets from Mars on in.


How are the four outer planets alike?

The four outer planets are all of the type astronomers call "gas giants", and have no hard, rocky surface per se. The inner planets are all solid rocky "terrestrial" planets. Also, the four outer planets are larger in size and lesser in density than the inner planets.


How do the distances between the inner planets compare to the distance between the outer planets?

The orbits of the four inner planets are much closer, all orbiting the sun within ¼ billion km. The outer planets are more spread out, but are much larger in size. Their distances roughly double each time as you go out from Jupiter. Average distances of inner planets from sun; Mercury, 57,909,175km Venus, 108,208,930km Earth, 149,597,890km Mars, 227,936,640km Average distances of outer planets from sun; Jupiter, 778,412,010km Saturn, 1,426,725,400km Uranus, 2,870,972,200km Neptune, 4,498,252,900km


Is Eris a inner or outer planet?

Eris is an OUTER planet. The only inner planets are mercury, venus, earth and mars. An outer planet is not related to the size of the planet but rather the distance from the sun.


How are inner planets and outer planets different?

Inner planets (inside the main asteroid belt) are "terrestrial", with a solid rocky outer crust above a rocky "mantle". The outer planets (beyond the asteroid belt) have no crust. Like the Sun, they are composed almost entirely of gas. The reason the gas planets became planets instead of stars was because of their small size.


What do all the inner planets have in common?

they are made of rock rather that gas or iceThey are small and have rocky surfaces.its there size and so is for outer planets


How are the inner planets different from the outer planets in size and make up?

Outer planets are made up of gas and dust particles, have thicker atmospheres and are bigger due to their place in orbit around the sun, while inner planets are mostly solid particles, warmer, and closer to the sun because of their gravitational attraction to it.


What is the average size of the outer planets?

The average sizes of the outer planets are smallest than the average size of the Pluto so that they can called them the dwarf planets.


What are the major characteristics of the inner planets?

Each of the four inner planets have a clearly defined terrain. They are different to the gas planets, which don't have a clear solid surface. The inner planets are also much smaller and less massive, yet have a higher density than the outer planets. The inner planets have fewr moons due to their smaller mass and size. As they are closer to the sun, they orbit the sun in less time and are also warmer.


How are inner and outer planets different?

alsoooooinner--- outer---close to the sun far from the sunsmall in size big sizeterrestial rings (4)no rings more moonsless moons deep atmosphereorbit time short orbit time long


What is the size difference between the sun and Mercury?

The Sun is huge it is bigger than all inner planets and probably the outer ones too.


Why are the outter planets bigger than the inner planets?

Because the outer planets are gas giants except for Pluto. Pluto is an outer planet because it is the object (planet) that kept interfering with Neptune's orbit. Pluto is one on hundreds of thousands of meteoroids that a around the size of our moon.


What is the main difference between the inner and outter planets?

The main differences between inner and outter planets are: Outter planets are all gas planets and are huge in size and have extreme heat temperatures, Inner planets all have a solid crusts, they are small in size and have lower temperatures than gas planets


What is the major difference between smaller inner planets and larger outer?

The relative size of the gaseous atmosphere - mostly due to the amount of hydrogen in that atmosphere.


How do four rocky planets compare to the four gas giants in size?

All four rocky planets are much smaller than gas planets.


List the four inner planets in order of size from smallest to largest?

The four inner planets in order of size from SMALLEST to LARGEST are Mercury, Mars, Venus, and Earth.


What are Jupiter Saturn Uranus Neptune and Pluto called?

These are the "outer planets." They are outside the asteroid belt which seperates the outer and inner planets. The asteroid belt itself is believed to be another planet which was torn apart by Jupiter's gravitational pull. Lastly, all of the outer planets with the exception of Pluto are called gas giants due to the fact they do not have a solid rocky crust like the inner planets. Pluto has recently been downgraded from a planet due to its size as well as its odd orbit.


How does the of the planets farther from the sun compare with the size of the planets closer to it?

The four outer planets are all significantly larger than the four inner planets. Beyond that there's no simple relationship. The size of the planets (from smallest, 1, to largest, 8) in order of distance from the Sun: 1, 3, 4, 2, 8, 7 ... and then it gets vague. If you go by radius, the last two are 6, 5 and if you go by mass they're 5, 6 (either way, they're nearly twins).


What outer planets are about the same size?

Uranus and Neptune are roughly the same size.


What is the difference between a terrestrial and gas giant planet?

Each of the four inner planets have a clearly defined terrain. They are different to the gas planets, which don't have a clear solid surface. The inner planets are also much smaller and less massive, yet have a higher density than the outer planets. The inner planets have fewr moons due to their smaller mass and size. As they are closer to the sun, they orbit the sun in less time and are also warmer.


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